The groovy plugin throws an exception at application startup

[Paolo Di Tommaso]

I've installed the groovy module and created an Play app with groovy option. Starting the application the following exception is thrown

00:30:16,979 INFO  ~ Starting /Users/ptommaso/workspace/groovyapp
00:30:16,983 INFO  ~ Module groovy is available (/Users/ptommaso/tools/play-1.2.3/modules/groovy-0.1)
00:30:17,938 INFO  ~ Groovy support is active
00:30:17,939 WARN  ~ You're running Play! in DEV mode
~
~ Go to http://localhost:9000/@tests to run the tests
~
00:30:18,024 INFO  ~ Listening for HTTP on port 9000 (Waiting a first request to start) ...
Not sure what to do with this source. This is probably a bug
Not sure what to do with this source. This is probably a bug
00:30:29,568 ERROR ~ 

@68p05a770
Internal Server Error (500) for request GET /

Oops: NullPointerException
An unexpected error occured caused by exception NullPointerException: Cannot invoke method refresh() on null object

play.exceptions.UnexpectedException: Unexpected Error
    at play.Play.start(Play.java:525)
    at play.Play.detectChanges(Play.java:610)
    at play.Invoker$Invocation.init(Invoker.java:186)
    at Invocation.HTTP Request(Play!)
Caused by: java.lang.NullPointerException: Cannot invoke method refresh() on null object
    at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:77)
    at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:45)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
    at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:32)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
    at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:54)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:112)
    at play.groovysupport.GroovyPlugin$_updateJava_closure10.doCall(GroovyPlugin.groovy:242)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
    at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
    at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:272)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:884)
    at groovy.lang.Closure.call(Closure.java:410)
    at org.codehaus.groovy.runtime.DefaultGroovyMethods.callClosureForMapEntry(DefaultGroovyMethods.java:3374)
    at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:1406)
    at org.codehaus.groovy.runtime.dgm$143.invoke(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoMetaMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:271)
    at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:53)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
    at play.groovysupport.GroovyPlugin.updateJava(GroovyPlugin.groovy:215)
    at play.groovysupport.GroovyPlugin$updateJava.callCurrent(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:46)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:133)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
    at play.groovysupport.GroovyPlugin.compileSources(GroovyPlugin.groovy:101)
    at play.plugins.PluginCollection.compileSources(PluginCollection.java:349)
    at play.classloading.ApplicationClassloader.getAllClasses(ApplicationClassloader.java:397)
    at play.Play.start(Play.java:485)

[Dave Clark]

hi - sorry I didn't see this before. I'll look into this now

[Dave Clark]

OK, there was a syntax error in one of the default tests so I've fixed that, but I don't think that's what was causing your error.

Did you put any of your own source files in your play-groovy app before you got this error? Or is this from the exact sample app that you get given when you do > play new groovyapp --with groovy ?

[Paolo Di Tommaso]

No, I didn't add any new files. It's the "welcome" app as it is generated by the new command. Trying to debug it I've added a more detailed log message. It seems the problem is that absolute paths are not resolved for some modules. Look:

19:31:13,181 INFO ~ Listening for HTTP on port 9000 (Waiting a first request to start) ...
Not sure what to do with this source '/Users/yo/tools/play-1.2.3/modules/docviewer/app/controllers/PlayDocumentation'. This is probably a bug
Not sure what to do with this source '/Users/yo/tools/play-1.2.3/modules/docviewer/app/controllers/PlayDocumentation'. This is probably a bug
19:31:20,034 ERROR ~

[Marek Piechut]

Hi.

My last pull request is a bugfix for that issue.